What is the main source of bleeding in extradural (epidural) hematomas?
a. Arterial
b. Venous
c. Capillary
d. Sinus
ANS: A
An artery is the source of bleeding in 85% of extradural hematomas. The bleeding associated with an extradural hematoma is not a result of damage to a vein, a capillary, or a sinus.
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